Answer:
7
Step-by-step explanation:
hurry!
Answer:
and 
and b=
Step-by-step explanation:
We are given that a quadratic equation

We have to solve the equation by completing square and find the value of b.






and 

And 
Therefore,
and 
and b=
x=3 and y=2 because 6+6 = 12 and 2 times 3 is 6 :)